function isEmailAddr(email)
{
  var result = false;
  var theStr = new String(email);
  var index = theStr.indexOf("@");
  if (index > 0)
  {
    var pindex = theStr.indexOf(".",index);
    if ((pindex > index+1) && (theStr.length > pindex+1))
	result = true;
  }
  return result;
}

function allDigits(FormField)
{
    return inValidCharSet(FormField,"0123456789");
}

function inValidCharSet(str,charset)
{
	var result = true;

	// Note: doesn't use regular expressions to avoid early Mac browser bugs	
	for (var i=0;i < str.length;i++)
		if (charset.indexOf(str.substr(i,1)) < 0)
		{
			result = false;
			break;
		}
	
	return result;
}

function validRequired(formField,fieldLabel)
{
	var result = true;
	
	if (formField.value == "")
	{
		alert('Please enter a value for the "' + fieldLabel +'" field.');
		formField.focus();
		result = false;
	}
	
	return result;
}

function validRequiredAsterix(formField,fieldLabel)
{
	var result = true;
	
	if ((formField.value == "") || (formField.value =="*") || (formField.value == "0"))
	{
		alert('Please enter a value for the "' + fieldLabel +'" field.');
		formField.focus();
		result = false;
	}
	
	return result;
}

function validEmail(formField,fieldLabel,required)
{
	var result = true;
	
	if (required && !validRequired(formField,fieldLabel))
		result = false;

	if (result && ((formField.value.length < 3) || !isEmailAddr(formField.value)) )
	{
		alert("Please enter a complete email address in the form: yourname@yourdomain.com");
		formField.focus();
		result = false;
     }	
      return result;
}

function validNum(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
 
 	if (result)
 	{
 		if (!allDigits(formField.value))
 		{
 			alert('Please enter a number for the "' + fieldLabel +'" field.');
			formField.focus();		
			result = false;
		}
	} 	
	return result;
}

function validInt(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		var num = parseInt(formField.value,10);
 		if (isNaN(num))
 		{
 			alert('Please enter a number for the "' + fieldLabel +'" field.');
			formField.focus();		
			result = false;
		}
	} 
	
	return result;
}

function validDate(formField,fieldLabel,required)
{
	var result = true;

	if (required && !validRequired(formField,fieldLabel))
		result = false;
  
 	if (result)
 	{
 		var elems = formField.value.split("/");
 		
 		result = (elems.length == 3); // should be three components
 		
 		if (result)
 		{
 			var month = parseInt(elems[0],10);
  			var day = parseInt(elems[1],10);
 			var year = parseInt(elems[2],10);
			result = allDigits(elems[0]) && (month > 0) && (month < 13) &&
					 allDigits(elems[1]) && (day > 0) && (day < 32) &&
					 allDigits(elems[2]) && ((elems[2].length == 2) || (elems[2].length == 4));
 		}
 		
  		if (!result)
 		{
 			alert('Please enter a date in the format MM/DD/YYYY for the "' + fieldLabel +'" field.');
			formField.focus();		
		}
	} 
	
	return result;
}

function validLength(formField, fieldName, maxLength)
{
     if (formField.value.length >= maxLength)
     {
		 alert('The Maximum length of the ' + fieldName + ' is ' + maxLength + ' characters.  Please shorten the ' + fieldName + '.');
		 formField.focus();
		 return false;
      }
      return true;
}

function validPassword(formField, fieldName, minLength, maxLength)
{
     if ((formField.value.length > maxLength) || (formField.value.length < minLength))
     {
		 alert('The ' + fieldName + ' Field must be between ' + minLength + ' and ' + maxLength + ' characters.  Please correct the ' + fieldName + ' field.');
		 formField.focus();
		 return false;
      }
      return true;
}

function confirmDelete(adDelete) 
{   if (confirm("Are you sure you want to delete this ad?  Note: that this will permanently delete your ad and you will be required to pay again if you'd like to renew it.")) 
    {      
    window.location=adDelete
    }
}

function validRadio(theForm)
{
      var found_it //initial value is null because we gave it no other value

      for (var i=0; i < theForm.u_contactall.length; i++)
      { 
          if (theForm.u_contactall[i].checked)  
          {
               found_it = theForm.u_contactall[i].value; //set found_it equal to checked button's value
           } 
      }
      if(found_it != null)
      { //if found_it is NOT equal to null, a button HAS been checked
      return true;
      }
      else { 
            alert("Please make a choice for Contact Information to Display.")
            } 
}

var prefix=""
var wd

function validPrice(formField)
{
      if (formField.value.charAt(0)=="$")
      return
      wd="w"
      var tempnum=formField.value
      for (i=0;i < tempnum.length;i++){
          if (tempnum.charAt(i)==".")
          {
              wd="d"
          break
          }
      }
      if (wd=="w")
          formField.value=prefix+tempnum+".00"
      else{
          if (tempnum.charAt(tempnum.length-2)=="."){
          formField.value=prefix+tempnum+"0"
          }
      else{
          tempnum=Math.round(tempnum*100)/100
          formField.value=prefix+tempnum
          }
      }
}

function validateAdUpdate(theForm)
{
	// Customize these calls for your form
	// Start ------->
	if (!validRequired(theForm.u_title,"Title"))
		return false;
	if (!validLength(theForm.u_title, "Title", 50))
		return false;
	if (!validRequired(theForm.u_description,"Description"))
		return false;
	if (!validNum(theForm.u_price,"Price",true))
		return false;
    if (!validDate(theForm.u_startdate,"Start Date",true))
        return false;
    if (!validRadio(theForm))
        return false;
	// 
	
	return true;
}

function verifyDuration(formField1, formField2)
{	
	if ((formField1.value != 0) && (formField1.value != null))
    {
         formField2.disabled = false;
    }
    else 
        {
        var blank;
        blank = "";
        formField2.value = blank;
        formField2.disabled = true; 
        }  
}

function verifySignature(formField1)
{	
    var result = true;

	if (formField1.checked)
         { result = true; }  
    else 
         {
         alert('Please check the Signature Box to verify that you have read our policies.');
         formField1.focus();
         result = false;
         }
    return result;
}

function verifyPassword(formField1,formField2)
{
	var result = true;
	
	if (formField1.value != formField2.value)
	{
		alert('Passwords did not match.  Please re-enter matching passwords.');
		formField2.focus();
		result = false;
	}
	
	return result;
}

function verifyMinMaxPrices(formField1,formField2)
{
	var result = true;
	
	if (formField1.value > formField2.value)
	{
		alert('Please ensure that your Minimum Price is less than your Maximum Price.');
		formField1.focus();
		result = false;
	}
	
	return result;
}

function stripCharsNotInBag (s, bag)

{   var i;
    var returnString = "";

    // Search through string's characters one by one.
    // If character is in bag, append to returnString.

    for (i = 0; i < s.length; i++)
    {   
        // Check that current character isn't whitespace.
        var c = s.charAt(i);
        if (bag.indexOf(c) != -1) returnString += c;
    }

    return returnString;
}

function reformat (s)

{   var arg;
    var sPos = 0;
    var resultString = "";

    for (var i = 1; i < reformat.arguments.length; i++) {
       arg = reformat.arguments[i];
       if (i % 2 == 1) resultString += arg;
       else {
           resultString += s.substring(sPos, sPos + arg);
           sPos += arg;
       }
    }
    return resultString;
}

function openPopUp(page) 
{
var n=open(page, 'new', 'width=300,height=300,status=no,menubar=no,scrollable=no,resizable=no');
}

function VerifyIDSearch(FormField,charset)
{
	var result = true;

	// Note: doesn't use regular expressions to avoid early Mac browser bugs	
	for (var i=0;i < FormField.value.length;i++)
		if (charset.indexOf(FormField.value.substr(i,1)) < 0)
		{
		alert('Please ensure that you enter ONLY numbers for the ID Search.');
		FormField.focus();
		result = false;
        break;
		}
	
	return result;
}

function validateContact(theForm)
{
	// Customize these calls for your form

	// Start ------->
	if (!validRequired(theForm.salutation,"Salutation"))
		return false;
	if (!validRequired(theForm.first_name,"First Name"))
		return false;
	if (!validRequired(theForm.last_name,"Last Name"))
		return false;
	if (!validRequired(theForm.company,"Organization"))
		return false;
	if (!validRequired(theForm.title,"Title"))
		return false;
	if (!validEmail(theForm.email,"E-mail",true))
		return false;
	if (!validRequired(theForm.industry,"Industry"))
		return false;
	if (!validRequired(theForm.phone,"Phone"))
		return false;
	if (!validRequired(theForm.address1_city,"City"))
		return false;
	if (!validRequired(theForm.address1_state,"Province"))
		return false;
	if (!validRequired(theForm.address1_country,"Country"))
		return false;
	if (!validRequired(theForm.product,"Product / Service Interest"))
		return false;
	return true;
}

function validateRegistration(theForm)
{
	// Customize these calls for your form

	// Start ------->
	if (!validRequired(theForm.salutation,"Salutation"))
		return false;
	if (!validRequired(theForm.first_name,"First Name"))
		return false;
	if (!validRequired(theForm.last_name,"Last Name"))
		return false;
	if (!validRequired(theForm.company,"Organization"))
		return false;
	if (!validRequired(theForm.title,"Title"))
		return false;
	if (!validEmail(theForm.email,"E-mail",true))
		return false;
	if (!validRequired(theForm.phone,"Phone"))
		return false;
	if (!validRequired(theForm.product,"Product / Service Interest"))
		return false;
	return true;
}


function validateSubscription(theForm)
{
	// Customize these calls for your form

	// Start ------->
	if (!validEmail(theForm.email,"E-mail",true))
		return false;
	return true;
}